Soldering-machine.



A. L. KRONQUEST.

SOLDERING MACHINE.

APPLICATION FlLEDSEPT-ZY. 1912. I

1 210 177. Patented Dec. 26,1916.

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Patented Dec. 26,1916.

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ALFRED nKnoNQUnsr, OF CHICAGO, ILLINOIS, ASSIGNGR, BY MESNE ASSIGNMENTS, TO CONTINENTAL CAN COMPANY, INC., A CORPORATION on NEW YORK.

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raionvvl Specification of Letters Patent.

Patented Dec.26, Idle.

Application filed September 27, 1912. Serial No. 722,698.

T 0 all whom it may concern:

Be it known that I, ALFRED L. KRON- onns'r, a citizen of the United States, residing at Chicago, in the county of Cook, State of Illinois, have invented certain new and useful Improvements in Soldering-Machines, of which the following is a description, reference being had to theaccompanying drawing and to the figures of reference markedthereon- The invention relates'to new and useful improvements in soldering machines, and more particularly to machines of this character for soldering the side seam of a can body.

In the making of the side seam of a can body, itis desirable that the solder for joining the'edges of the side seam shall not extend beyond the outer ends of the seam, or inside of the can body, as this accumulation of solder at the ends prevents the making of theproper double seam when the end is,

rolled into said double seam, and also prevents the making of a close joint where an end isslipped on to the can body and subsequently soldered- This accumulation .of

solder at the end of the seam and inside the can is caused by the iron sliding of]? the end of the metal.

An object of the invention is to provide means for distributing and sweating in the solder along the side seam, so that the solder may be applied entirely on the outside of the side seam within the limits of the ends.

A further object of the invention is to provide a device of the above character,

which includes a swinging soldering iron so positioned and manipulated relative to the travel of the can body that the iron engages the can body at a point in rear of the advance end of the side seam.

Ai urther object of the invention is to provide a device of the. above character, wherein the swinging arm is caused to leave the can body at a pointin advance of the rear end of the side seam.

These andother objects will in part be obvious, and will in part be hereinafter more fully disclosed. J k

In the drawings, which show by way of illustration one embodiment of the invention,-Figure 1 is a side elevation of a portion of a side seaming machine embodying my improvements; Fig. 2 is an enlarged de tail showing one of the traveling carriages, the horn carried thereby and the swinging soldering iron in side elevation; also the mechanism for operating the swinging soldering iron; Fig. 3 is a transverse sectional view, showing the soldering iron, the horn, the can body, and the means for swinging the soldering iron; Fig. 4t is an enlarged detail of the cam for operating the soldering iron; Fig. 5 is a diagrammatic view, showing the position of the soldering iron when first contacting with the can body; Fig. 6, is a similar view, showing the movement of the soldering iron to a point adjacent the advanced end of the side seam; and Fig, .7 is a similar view, showing the soldering iron at a point where it is swung. from contact with the can body. Fig. 8 is a detail in section through the soldering iron and the heating pipe therefor.

I have shown my improved soldering niechanism'as applied to a lap seam body maker of the general character shown and. described in a patent granted to Jesse ll): Abrams, February 15th, 1910, No. 949,722, the manner of shaping the can body, the traveling carriages and horns "for-support, ing the can bodies, being similar 'in a general way to those shown in said patent. It will be understood, however, that my improved soldering iron may be used in con- .nection with other types of soldering mecha nism, as for example, where the can end or head is slipped onto the can body and sub sequently soldered, and also other types of side seaming devices wherein the edges forming the side seam are interlocked rather than overlapped. I

The machine consists of a main frameor table 1, which is suitably supported, and along which are caused to travel carriages 2, which are connected together so as to. form an endless traveling carrier torthe can bodies. Extending along the side of the table isa shaft'3, which is driven in timed relation to the travel of the carriages.

Each of the carriages is provided with a supporting horn a, which is carried by and projects from the standard 5 mounted on the carriage. Also mounted on each carriage is a swinging jaw 6. This swinging jaw is moved about its pivotal support by a I roller 7, and is caused to clamp the can body C with its edges properly gaged and oven M In Fig. 3 of the drawing, I have shown the can body extending about the horn and the side edges overlapped and clamped by the swinging jaw 6. As each carriage passes the forming station, a blank is curled and placed on the horn, which supports the formed can body and presents the same to the fluxing station, then to the preheating station and finally to the soldering station.

In Fig. l of the drawing, I have shown the preheating station which consists of a series of jets 8. Solder is supplied by a solder-feeding device 9, which is of the usual construction. The solder is applied to the side seam by my improved soldering mechanism.

This improved soldering mechanism consists, as herein illustrated, of a swinging soldering iron 10, which is rigidly fixed to a shaft 11 mounted in bearings 12 and 13 carried by a bracket 14, mounted on the main frame or table 1. The soldering iron is heated by the usual perforated gas pipe, indicated at X in the drawings. The solder, after passing through the solder. feeding devices 9, is fed through a guiding pipe 9 carried by a bracket 9 which may be of the usual construction. This guides the solder onto the hot iron. At the opposite end of the shaft 11 is a projecting arm 15, which is connected by a link 16 to a slide 17. This sliding member 17 is mounted for vertical movement in a slot 18, in a projecting arm 19 carried by the bracket 14. The slide member 17 is provided with rollers 20 and 21, which are located on opposite sides thereof, and which cooperate with cams 22 and 23 respectively. These cams 22 and 23 are mounted on the shaft 3. The slide member 17 is formed with a slot 24:, which straddles the shaft 8, and serves to guide the member in its vertical movement. A spring 25 is secured at one end to the sliding member 17, and at its other end to a suitable stationary pin 26. This spring normally holds the rollers 20 and 21 in contact with the cams 22 and 23. The cams 22 and 23 are alike in construction, and are each provided with a concentric part 27 and a concentric part 28. These concentric parts are connected by slightly concave eccentrically located parts 29 and 30.

When the rollers are resting on the concentric part 27, the outer end of the arm 15 will. be raised, and the iron 10 swung so as to engage the can body on the horn passing underneath the same. When these rollers are in contact with the concentric part 28, the spring 25 will depress the outer end of the arm 15 and raise the swinging iron out of contact with the can body.

In the operation of my invention, the'can bodies as above noted, are formed and clamped to each horn. as they pass through the forming station. The horns in a machine of this type will pass in turn past the soldering iron. The cams 22 and 28 are so timed as to hold the swinging iron 10 raised from contact with the can body, as the advance end of the can body passes underneath the iron.

In Fig. 5 of the drawing, I have shown the can body C as moving in the direction of the arrow. After the advance end 0 of the side seam has passed the soldering iron 10, the cam raises the arm 15 and positively and quickly swings the soldering iron in the same direction as the direction of travel of the can body C. The iron will also travel slightly faster than the movement of the can body, and, therefore, when the can body is moved from the dotted line position in Fig. 6 to the full line position therein, the- Inasmuch as theactive end of the iron isslightly curved, as soon as the iron begins to swing, the heel thereof or rear edge, will be raised from the can body, and the iron will be brought out of contact with the can body without drawing the same over the extreme rear edge 0 of the end seam.

From. the above description, it will be ap-.

parent, that I have provided a construction wherein a soldering iron is brought into en gagement with a can body at a point in rear of the advance end of the side-seam thereof, and leaves the can body at a point in advance of the rear end of the side seam, and, therefore, the iron at no time slides over either end of the side seam, and all liability ofcarrying solder inside of the can body, or causing the solder to accumulate at the end of. the seam through the scraping effect of the edge of the metal, as the iron slides up on to the same, is avoided.

I am able by my construction to solder a side seam and avoid all objectionable accumulation of the solder at either end of the seam, and thereby greatly increase the of ficiency of the double seams formed at the ends of the can bodies, and facilitate the putting 011 of ends which are to be soldered thereafter.

WVhile I have shown aswingingsoldering soldering mechanism'as especially adapted for soldering lap'seams, it will be obvious from certain aspects of the invention, that the swinging soldering iron may; also be used in connection with interlocked or folded side seams. p I

Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is

1. A soldering machine including in combination, means for supporting and continuously traveling a can body, andmeans for.

applying solder to the side seam of the can body, said last-named means including a soldering iron, and means for moving the soldering iron into initial contact with the can body in rear of the advance edge of the side seam and during the travel thereof.

2, A soldering machine including in combination, means for supporting and continuously traveling a can body, and means for applying solder to theside seam of the can body, said last-named means including a soldering iron, and means for moving the soldering iron into initial contact with the can body in rear of the advance edge of the side seam and during the travel thereof, and for moving said iron out of contact with the can body at a point in advance of the rear end of the side seam.

A soldering machine including in combination, means for supporting and moving endwiso a can body, and means for applying the solder to the side seam thereof, said means including a soldering iron, means for moving said iron into initial contact with the can body at a point in rear of the advanced end of the side seam, and to cause said iron to travel with-the can body and at a greater speed than the can body until said iron is brought to a point directly in rear of the advanced end of the side seam, and to dwell while the can body is passing underneath the same.

a. A soldering machine including in combination, means for supporting and moving endwise a can body, means for applying the solder to the side seam thereof, said means including a soldering iron, means'for moving said iron into initial contact with the can body at a point in rear of the advanced end of the side seam, and to cause said iron to travel with the can body and at a greater speed than the can body until said iron is brought to a point directly in rear of the advanced end of the side seam, and to dwell while the can body is passing underneath the same, and for causing said iron to be re tracted from the can body at a point directly in advance of the rear end of the side seam. I

5. A soldering machine including in combination,- a plurality of traveling horns, means for clamping a can body on each horn qwith the side' edges thereof overlapping, means for soldering said overlapped edges including a soldering iron, andrmeans for moving said soldering ron into init al contact with thecan body at a point in rearof the advanced end of the side seam.

6. A soldering machine including in conr binatlou, a. plurality of travellng horns,

means for clamping a can body on each horn with the side edges thereof overlapping, means for solderlng said overlapped edges lncluding a solder ng iron, means for movadvanced end of the side seam, and for causing said iron to travel with the can body and at a greater speed than the can body until the iron has reached a point directly in rear of the advanced end of the side seam, and to dwell while the can body is passing underneath the same.

7, A soldering machine including in com bination, a plurality of traveling horns, means for clamping a can body on each horn with the side edges thereof overlapping, means for soldering said overlapped edges including a soldering iron, means for mo ing said soldering iron into initial contact with the can body at a point in rear of the advanced end of the side seam, and for causing said iron to travel with the can body and at a greater speed than the can body until the iron has reached a point directly in rear of the advanced end of the side seam, and to dwell wh1le the can body is passing underneath the same, and means for causing said iron to be retracted from the a can body at a point'in advance of the rear end of the side seam.

8. A soldering machine including in combination, a plurality of traveling horns, means for clamping a can body on each horn with the side edges thereof overlapping, "means for soldering said overlapped edges including a pivoted soldering iron mounted to swing about an axis at right angles to the plane of travel of the can body, and means for swinging said soldering iron, whereby the same'is caused to initially contact with the can body at a point in rearof the advanced end of the side seam. V

9. A soldering machine includingin combination, a plurality of traveling horns,

means for clamping a can body on each horn until in full contact therewith and to dwell,

mg said soldering iron into initial contact with the can body ata polnt in rear of the while the can body is passing underneath the same.

10. A soldering machine including in combination, a plurality of traveling horns, means for clamping a can body on each horn with the side edges thereof overlapping, means for soldering said overlapped edges including a pivoted soldering iron mounted to swing about an axis at right angles to the plane of travel of the can body, means for swinging said soldering iron, whereby the same is caused to contact with the'can body at a point in rear of the advanced end of the side seam, and for causing said iron to travel in the direction of movement of the can 15 hodyuntil in full contact therewith and to dwell while the can body is passing underneath the same, and means for raisingithe iron from contact with .thevcanbody at a point in advance of the rear end of the side 20 seam. V

In testimony whereof, I affix my signature, in the presence of two. witnesses Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents Washington, 110. 

